Malossi Block Kit (Ø67 Pin Ø15 H2O) - Italjet Dragster 125 200 4T

Technical features

Cylinder

• 125 cc:

  1. Bore: Ø 67 mm

  2. Stroke: 47 mm

  3. Displacement: 166

• 200 cc:

  1. Bore: Ø 67 mm

  2. Stroke: 58 mm

  3. Displacement: 200

• Compression ratio: 12:1

• Material: primary aluminium alloy with a high content of hardened and tempered silicon, cylinder liner with silicon carbide coating in a galvanic nickel die and crossed smoothing with two diamond passages with very limited tolerances.

• Machining: on machine tools with high precision numerical control.

• Cylinder-piston connection with an allowance of 0.05 mm.

• Recalculated and upgraded heat exchange surfaces.

Piston

• Ultra compact with 3 rings.

• Material: special aluminium alloy with high silicon content, low thermal expansion and a tin facing on the sliding surfaces.

• Machining on machine tools with numerical control.

• Lightened and reinforced.

• Upgraded heat exchange surfaces.

Piston rings

• Special rings with high sliding ease and very high mechanical resistance.

• I° ring compression in nitrided and chromium steel.

• II° special cast iron ring.

• Three - piece scraper ring made of chromium-plated special steel alloy.

Price Update: 2 Oct 2025